Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q821: Which of the following is the characteristic of Bipolar AMI?
- A: No DC component and synchronization issue
- B: Long sequence of 1s
- C: High bandwidth
- D: Continuous pulse
View Answer
A
Q822: Two common scrambling techniques are _______ and HDB3.
- A: B8ZS
- B: NRZ-I
- C: AMI
- D: Bipolar
View Answer
A
Q823: Bipolar with 8-Zero Substitution (B8ZS) is a type of _______.
- A: scrambling technique
- B: encoding technique
- C: error correction technique
- D: line coding technique
View Answer
A
Q824: The main purpose of B8ZS is to solve _______ issues in data transmission.
- A: synchronization
- B: security
- C: error detection
- D: flow control
View Answer
A
Q825: Which of the following is the second common scrambling technique mentioned in the content?
- A: B8ZS
- B: NRZ-I
- C: HDB3
- D: AMI
View Answer
C
Q826: B8ZS is primarily used in _______ networks.
- A: telecommunication
- B: Wi-Fi
- C: WiMAX
- D: LAN
View Answer
A
Q827: Which technique replaces a sequence of eight consecutive zeros with a special pattern?
- A: B8ZS
- B: HDB3
- C: NRZ-I
- D: AMI
View Answer
A
Q828: Which of the following is not a scrambling technique mentioned in the content?
- A: B8ZS
- B: NRZ-I
- C: HDB3
- D: AMI
View Answer
B
Q829: In Bipolar with 8-Zero Substitution (B8ZS), the '8' refers to _______.
- A: the number of consecutive zeros
- B: substitution technique
- C: encoding technique
- D: none of the above
View Answer
A
Q830: B8ZS solves synchronization issues by replacing sequences of _______ zeros.
- A: eight
- B: five
- C: three
- D: twelve
View Answer
A